MAXQ615 Evaluation Kit
Evaluates: MAXQ615
General Description
The MAXQ615 evaluation kit (EV kit) provides a proven
platform for conveniently evaluating the capabilities of
the MAXQ615 low-power, 16-bit, RISC microcontroller
targeted for battery-powered applications. The EV kit
includes a MAXQ615 EV kit board, example software,
USB-to-JTAG interface board, 10-pin JTAG interface
cable, and a standard A-to-mini-B USB cable for connecting to a personal computer. The EV kit board, which
provides pin headers providing access to the processor’s I/O port pins, a 5V power-supply input, pushbutton
switches for user input, and an on-board SPI ADC and
I2C temperature sensor for demonstration purposes.
The EV kit provides a complete, functional system ideal
for developing and debugging applications as well as
evaluating the overall capabilities of the MAXQ615 RISC
processor.
Features
S Easily Loads and Debugs Code Using Supplied
JTAG Board
S JTAG Interface Provides In-Application Debugging
Features
Step-by-Step Execution Tracing
Breakpointing by Code Address, Data Memory
Address, or Register Access
Data Memory or Register Content View and Edit
S On-Board 3.3V Voltage Regulator
S On-Board DS1775 I2C Temperature Sensor
S On-Board MAX1118 SPI ADC
S Two User-Input Pushbutton Switches with Paired
Indicator LEDs (Connected to GPIO)
S Prototyping Area
S (Optional) +5V Regulated, Minimum 250mA Capacity, Center Post Positive Power Supply with 2.5mm
Jack. Models that have been used in the past
include CUI Inc. model DPR050030-P6P-SZ and V
Infinity model EPS050100-P6P. If the EV kit is powered through the USB-to-JTAG adapter (through
the 5V supply provided on the JTAG cable), then
this power supply is not needed.
EV Kit Contents
S MAXQ615 EV Kit Board with Either Socketed
MAXQ615 (XU1) or Soldered MAXQ615 (U4)
S USB-to-JTAG Adapter Board
S 2 x 5-Pin Connector Ribbon Cable (0.1in spacing)
for JTAG Programming
S Standard A-to-Mini-B USB interface Cable
S MAXQ615 EV Kit CD (includes the MAXQ615 IC
data sheet and user’s guide; MAXQ615 EV kit
quick start guide, data sheet, and schematics;
application notes; utilities and configuration files;
and example programs including source code).
Go to www.maximintegrated.com/evkitsoftware to
download the latest version of the EV kit CD.
Figure 1. MAXQ615 Evaluation Kit Board
Ordering Information appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-6413; Rev 0; 7/12
MAXQ615 Evaluation Kit
Evaluates: MAXQ615
Windows® PC
IAR EMBEDDED
WORKBENCH®
FOR MAXQ®
Rowley
CrossWorks
FOR MAXQ®
USB-TO-JTAG
INTERFACE MODULE
+5.0V
EXTERNAL
SUPPLY
5V POWER
OPTIONAL:
MAX-IDE,
MICROCONTROLLER
TOOL KIT (MTK)
USB
3.3V POWER
SUPPLY
JTAG
RESET
SWITCH
JUMPERS
SPI INTERFACE
ADC
JUMPERS
MAXQ615
MICRO
MAXQ615 EVALUATION KIT
I2C INTERFACE
TEMP SENSOR
JUMPERS
LEDs, GPIO,
SWITCHES
Figure 2. MAXQ615 EV Kit System Block Diagram
Windows is a registered trademark of Microsoft Corp.
IAR Embedded Workbench is a registered trademark of IAR Systems AB.
MAXQ is a registered trademark of Maxim Integrated Products, Inc.
Maxim Integrated
2
MAXQ615 Evaluation Kit
Evaluates: MAXQ615
Component List
DESIGNATION
QTY
DESCRIPTION
DESIGNATION
QTY
C1, C7, C10–
C12, C14
6
1FF, 16V ceramic capacitors (0603)
R3, R4
2
1.8kI Q1%, 1/10W SMD resistors
(0603)
C2
1
2.2FF, 6.3V ceramic capacitor
(0603)
R5, R7
2
110I Q1%, 1/10W SMD resistors
(0603)
C3, C6, C8,
C9, C13
5
100nF, 16V ceramic capacitors
(0603)
R6, R8
2
402I Q1%, 1/10W SMD resistors
(0603)
SW1–SW3
2
SPST normally open pushbutton
switches, 6mm, B3S-1002
TP1–TP21
21
Test points
U1
1
150mA linear regulator (5 SOT23)
Maxim MAX8877EUK33+
U2
1
Serial 2-channel ADC (8 SOT23)
Maxim MAX1118
U3
1
I2C temperature sensor (5 SOT23)
Maxim DS1775
U4
1
Microcontroller (16 TQFN-EP)
Maxim MAXQ615-F00+
XU1
1
Microcontroller socket
Maxim MAXQ615-F00+
—
0
PCB: MAXQ615 EV KIT
C4
1
10nF, 25V ceramic capacitor (0603)
C5
1
4.7FF, 10V ceramic capacitor (0603)
D1, D5, D6
3
Surface-mount, 570nm green LEDs
(0603) LG L29K-G2J1-24-Z
D2
1
SMAJ5.0A (DO-214AC, SMA)
D3, D4
2
CGRM4001-G (SOD-123F)
1
Fuse 200mA resettable (0603)
MF-FSMF020X-2
F1
J1
1
2.5mm power jack, through-hole
mount, center post positive
J2
1
2 x 5 header pins, 0.1in spacing
JU1–JU12
12
2 x 2 header pins, 0.1in spacing
MH1–MH4
4
Mounting holes
R1
1
845I Q1%, 1/10W SMD resistor
(0603)
R2, R9
2
10kI Q1%, 1/10W SMD resistors
(0603)
DESCRIPTION
Detailed Description
on-board linear regulator (U1) regulates the +3.3V VDD
power rail that is used by the MAXQ615.
This EV kit should be used with the following documents:
If the MAXQ615 kit is “free-running,” that is, if you are running an application that has been previously loaded into
the MAXQ615, and you do not need to use the loader or
debugger, the board may be powered by a 5V DC wall
supply connected to plug J1. The supply must be center
post positive, DC 5V regulated, with a 250mA minimum
capacity.
• MAXQ615 IC data sheet
• MAXQ615 user’s guide
• MAXQ615 EV kit data sheet
These documents are included on the MAXQ615 EV kit
CD, along with additional documentation and application
notes. For the latest versions of the documents listed
above, go to www.maximintegrated.com/MAXQ615.
This document includes full schematics for the EV kit.
Descriptions of the major sections and functions of the
board follows.
Power Supply
The MAXQ615 EV kit can be powered in several ways.
The board can be powered from the USB-to-JTAG adapter. The adapter provides a +5V DC supply. From this, an
Maxim Integrated
By removing jumper JU1 and connecting a power supply in its place, it is also possible to power the MAXQ615
from a DC bench supply or other regulated power
source. In this case, any power-supply voltage compatible with the device(s) that will be powered may be used;
refer to the MAXQ615 IC data sheet for more details on
the allowable range for the power supply.
Reset Pushbutton
Pushbutton SW3 can be used to manually reset the MAXQ615.
3
MAXQ615 Evaluation Kit
Evaluates: MAXQ615
Serial ADC
The EV kit board includes a MAX1118 2-channel serial
ADC (U2). By connecting the appropriate jumpers, the
ADC can be connected to the MAXQ615, and is used
to demonstrate the microcontroller’s SPI communication
interface. Each of the two ADC channels can be connected to the cathode of an on-board LED, and can be
used to measure the voltage drop across the LED. The
CD included with this EV kit includes sample code to
demonstrate how to interact with the ADC.
I2C Temperature Sensor
The EV kit board includes a DS1775 I2C temperature
sensor (U3). By connecting the appropriate jumpers, the
temperature sensor can be connected to the MAXQ615,
and is used to demonstrate the microcontroller’s I2C
communication interface. The CD included with this EV
kit includes sample code to demonstrate how to interact
with the temperature sensor.
GPIO Pushbuttons and Indicator LEDs
The two pushbuttons on the EV kit board can be connected to the MAXQ615 GPIO pins P1.0 and P1.1 by
closing the associated jumper. See Table 1 for a description of the jumpers. If the pushbutton is pressed, it will
pull the attached port pin low. The label indicating which
port pin is tied to the switch is found on the board next to
the switch. Switch SW2 pulls pin P1.0 (P10 label) low and
switch SW1 pulls pin P1.1 low.
The indicator LEDs (D5 and D6) next to each switch can
also be connected to the port pin by closing the associated jumper (as detailed in the jumper table). The LED
will be illuminated if either the GPIO pin connected to it is
driven low, or the pushbutton switch is pressed.
Jumper Function List
Table 1 details the functions of the configurable jumpers
on the EV kit board. Settings in the table marked with “*”
indicate jumper placements that should be used for most
normal operation (default settings).
Table 1. Jumper Functions
JUMPER
SETTING
EFFECT OF SETTING
Open
No on-board supply is connected to the VDD rail. To operate the EV kit, an external bench supply
must be connected to JU1.2 or one of the VDD test points. Refer to the MAXQ615 IC data sheet for
acceptable operating range information for the VDD supply.
*Closed
The +3.3V output from the on-board linear regulator (U1) is connected to the VDD rail. This supply
will be used to power the MAXQ615 (as long as JU2 is closed), as well as the demo components
U2 and U3 and the LEDs D5 and D6.
JU1
JU2
Open
*Closed
The 5V pin on the JTAG cable is not connected to the on-board linear regulator supply input. If this
position is used, then either a 5V external supply must be connected to J1 or a bench supply must
be connected to JU1.2 or a VDD test point (with JU1 open)
Closed
The MAXQ615 EV kit may be powered directly through the USB-to-JTAG adapter’s 5V supply (from
the USB bus supply)
Open
Closed
Open
JU5
Closed
Open
JU6
Maxim Integrated
The VDD pin on the MAXQ615 is connected to the on-board VDD power supply rail.
Open
JU3
JU4
No power is provided to the MAXQ615. This position should only be used when connecting a
current meter between JU2.1 and JU2.2 to measure power consumption by the MAXQ615.
Closed
No effect
The channel 1 input (CH1) on the ADC U2 is connected between LED D5 and R6 (see the EV kit
schematic). This can be used to measure the diode drop across D5, for demonstration purposes.
No effect
The channel 0 input (CH0) on the ADC U2 is connected between LED D6 and R8 (refer to the kit
schematic). This can be used to measure the diode drop across D6, for demonstration purposes.
No effect
The “start conversion on falling edge” pin on the MAX1118 (U2) is connected to pin P0.3 on the
MAXQ615. Refer to the MAX1118 IC data sheet for more information on initiating A/D conversions
and reading conversion results.
4
MAXQ615 Evaluation Kit
Evaluates: MAXQ615
Table 1. Jumper Functions (continued)
JUMPER
SETTING
Open
JU7
Closed
Open
JU8
Closed
Open
JU9
Closed
Open
JU10
Closed
Open
JU11
Closed
Open
JU12
Maxim Integrated
Closed
EFFECT OF SETTING
No effect
The DOUT pin on the MAX1118 is connected to the SPI 0 interface MISO pin (P0.1) on the
MAXQ615.
No effect
The SCLK pin on the MAX1118 is connected to the SPI 0 interface pin SCLK (P0.2) on the
MAXQ615.
No effect
Connects the SDA pin on the I2C temperature sensor (DS1775, U3) to the I2C SDA pin (P1.3) on
the MAXQ615. Also connects the I2C bus pullup resistor (R3) to the SDA pin on the MAXQ615.
No effect
Connects the SCL pin on the I2C temperature sensor (DS1775, U3) to the I2C SCL pin (P1.2) on
the MAXQ615. Also connects the I2C bus pullup resistor (R4) to the SCL pin on the MAXQ615.
No effect
Allows the green LED D5 to be controlled using the port pin P1.1 (driving the port pin low lights the
LED). Also, pressing SW1 will both drive P1.1 low and cause the LED to light.
No effect
Allows the green LED D6 to be controlled using the port pin P1.0 (driving the port pin low lights the
LED). Also, pressing SW2 will both drive P1.0 low and cause the LED to light.
5
4
3
2
J5V
1
RESET
TP19
TP13
TP2
TP21
TP20
TP1
TP12
TP18
MH4
MT HOLE 125-200
MH3
MT HOLE 125-200
MH2
MT HOLE 125-200
MH1
MT HOLE 125-200
TP6
TP5
TP4
TP3
TP17
TP16
TP15
TP14
TP11
TP10
TP9
TP8
LED0
LED1
P00
P01
P02
P03
P04
P05
P06
P07
P10
P11
P12
P13
Add breadboard area in extra space
using thru holes on 0.1 inch centers.
Place testpoints on 0.1 inch centers.
R9
10K
Mount Holes
VDD
RST_N
VDD
C5
4.7uF
10V
JU5
JU4
C7
1uF
16V
P00
P01
P02
P03
P04
P05
P06
P07
P10
P11
P12
P13
SW3
RESET
D4
D3
ANI0
ANI1
100nF
C6
JU2
VDD
1
2
3
4
MAXQ_VDD
P03
P12
P13
200mA
1
2
3
4
SCLK
DOUT
CNVST
REF
MAX1118
VDD
CH0
CH1
GND
U2
8
7
6
5
D1
LED, GREEN
5V
RST_N
P0.0
P0.1
P0.2
U4
MAXQ615
C10
1uF
16V
SCLK
MISO
R2
10K
JU7
JU8
JU6
C11
1uF
16V
P0.7
P0.6
P0.5
P0.4
MAXQ615
D2
SMAJ5.0A
100nF
C9
MAXQ_VDD
F1
SPI A/D Converter
VDD
RST_N
P00
P01
P02
CGRM4001-G
CGRM4001-G
16
15
14
13
P1.3
P1.2
P1.1
P1.0
P0.3
VDD
REG18
GND
5
6
7
8
EP
Maxim Integrated
EP
J1
PJ-102B
5.0V DC, 2.5MM
1
3
2
P02
P01
P03
12
11
10
9
P11
P10
R1
845
100nF
C3
VDD
P07
P06
P05
P04
C1
1uF
16V
1
2
3
P11
P10
P12
P13
P05
P04
P07
P06
JU11
R5
R7
110
110
LED0
D6
LED, GREEN
P10
TP7
VDD
JTAG
C2
2.2uF
6.3V
2
4
6
8
10
VDD
VDD
RST_N
VDD
VDD
JU3
U3
VDD
GND
R6
402
LED1
2
4
2
1 SW1
2
1 SW2
D5
LED, GREEN
P11
DS1775
SCL
SDA
O.S.
VDD
1
5
3
P11
J5V
100nF
C8
VDD
P10
I2C Temp Sensor
R8
402
O.S.
SCL
SDA
R3
1.8K
TCK
GND
TDO VREF
TMS nRST
KEY VCC5
TDI
GND
J2
R4
1.8K
1
3
5
7
9
GPIO
JU12
C4
10nF
25V
JU1
JTAG Connector
4
5
JU10
JU9
MAX8877EUK33+
IN
OUT
GND
BP
SHDN
U1
Power Supply
3
4
3
4
MAXQ615 Evaluation Kit
Evaluates: MAXQ615
Figure 3. MAXQ615 EV Kit Schematics (Sheet 1 of 2)
6
MAXQ615 Evaluation Kit
Evaluates: MAXQ615
MAXQ615 Socket
P12
P13
P1.3
P1.2
P1.1
P1.0
16
15
14
13
P11
P10
5
6
7
8
P0.7
P0.6
P0.5
P0.4
12
11
10
9
P07
P06
P05
P04
EP
XU1
MAXQ615
P0.3
VDD
REG18
GND
RST_N
P0.0
P0.1
P0.2
EP
1
2
3
4
RST_N
P00
P01
P02
P03
MAXQ_VDD
C13
100nF
C12
1uF
16V
C14
1uF
16V
Figure 4. MAXQ615 EV Kit Schematics (Sheet 2 of 2)
Maxim Integrated
7
MAXQ615 Evaluation Kit
Evaluates: MAXQ615
Ordering Information
PART
TYPE
MAXQ615-KIT#
EV Kit
#Denotes a RoHS-compliant device that may include lead(Pb)
that is exempt under the RoHS requirements.
Maxim Integrated
8
MAXQ615 Evaluation Kit
Evaluates: MAXQ615
Revision History
REVISION
NUMBER
REVISION
DATE
0
7/12
DESCRIPTION
Initial release
PAGES
CHANGED
—
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent
licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and
max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
© 2012 Maxim Integrated Products, Inc.
9
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.